Research Projects
NSERC Canadian Integrated Multi-Trophic Aquaculture Network

Research Projects

Project Title:
Cultivation of complementary inorganic extractive species for increased system
performance (D1P2)

Project Description:
The inorganic extractive component of the IMTA system on the east coast has been the two kelps Saccharina latissima and Alaria esculenta since 2001. On the west coast, Saccharina latissima has been cultivated since 2007. These two species are cultivated first in the laboratory, from September to November, and then at the sites from November to June/July. They need to be harvested in late spring/early summer before the erosion of the blades, and their fouling, compromise the harvest and quality of the derived products. Consequently, there is a period of the year (summer) when seaweeds are absent at the sites and inorganic biomitigation is not taking place. This project is investigating two new macro-algal candidate species, Palmaria palmata (dulse) on the east coast and Ulva sp. (sea lettuce) on the west coast, whose cycles and characteristics allow growth of the macroscopic stages during the summer to provide biomitigative biomass during that time of the year and, consequently, an overall increase of the inorganic biomitigative capacity of the IMTA systems. Research is also underway to explore the use of seaweeds for partial substitution in fish feed formulations as alternate protein sources to fishmeal and land plant proteins.
(Two new candidates for the inorganic extractive component of IMTA: the red alga, Palmaria palmata (dulse), and the green alga, Ulva sp. (sea lettuce), among the species already cultivated, the brown algae Saccharina latissima and Alaria esculenta (kelps).  - Credits: Thierry Chopin)

Project Leader Name:
Thierry Chopin, University of New Brunswick Saint John, Department of Biology

Project Leader E-mail Contact:

Team Members’ Names and Affiliations (Researchers and Students):
Stephen Cross (UVic)
Constanza Chianale (UNBSJ graduate student)
Nick Sherrington (UVic graduate student)

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